The present invention provides a useful morpholino nucleic acid derivative for synthesizing a morpholino nucleic acid oligomer. The present invention provides a compound represented by the following general formula (1) or a salt thereof.
Here, R
1
represents hydrogen, trityl and so on.
R
2
represents an amide or an imine.
R
3
represents a hydroxy group which may be protected by trialkylsilyl and so on, or a group represented by the following general formula (5):
(wherein X represents O or S, Y represents dialkylamino or alkoxy, and Z represents chlorine).
[EN] MYOSTATIN SIGNAL INHIBITOR<br/>[FR] INHIBITEUR DE SIGNAL MYOSTATINE
申请人:NIPPON SHINYAKU CO LTD
公开号:WO2020138509A1
公开(公告)日:2020-07-02
The present invention provides a new approach for inhibiting myostatin signaling by targeting ACVR2B at the mRNA level.
本发明提供了一种通过针对ACVR2B在mRNA水平上的作用来抑制肌肉萎缩蛋白信号的新方法。
ANTISENSE NUCLEIC ACIDS
申请人:Watanabe Naoki
公开号:US20130211062A1
公开(公告)日:2013-08-15
The present invention provides a pharmaceutical composition which causes skipping of the 53rd exon in the human dystrophin gene with a high efficiency.
The present invention provides an oligomer which efficiently enables to cause skipping of the 53rd exon in the human dystrophin gene.
There has been a demand for a novel antisense nucleic acid or the like capable of inhibiting myostatin at the mRNA level.
The present invention provides a specific antisense oligomer which allows exon 2 skipping in the myostatin gene or induces degradation of mRNA of the myostatin gene.
An object of the present invention is to provide a novel preparation method that can shorten the preparation period of an oligonucleic acid compound.
An example of the present invention is a method for subjecting a compound [A] having a hydroxyl group or a primary or secondary amino group and a compound [B] having a substituent containing a phosphorus atom and represented by the following general formula [1]:
to a condensation reaction to prepare a compound [C] represented by the following general formula [C]:
wherein the condensation reaction is carried out in a mixed solvent containing a polar solvent and a halogen solvent as a reaction solvent.